<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="item.pics_id">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 信息主体区域 -->
      <view class="goods-info-body">
        <!-- 商品名称 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">快递：免运费--{{cart.length}}</view>
    </view>
  <!-- 商品详细信息 -->
  <rich-text :nodes="goods_info.goods_introduce"></rich-text>
  <!-- 商品导航组件 -->
  <view class="goods-nav">
      <!-- fill 控制右侧按钮的样式 -->
      <!-- options 左侧按钮的配置项 -->
      <!-- buttonGroup 右侧按钮的配置项 -->
      <!-- click 左侧按钮的点击事件处理函数 -->
      <!-- buttonClick 右侧按钮的点击事件处理函数 -->
    <uni-goods-nav :fill="true" :options="options" :button-group="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
  </view>
  </view>
</template>

<script>
  import {mapState,mapMutations,mapGetters} from 'vuex'
  export default {
    data() {
      return {
        //商品详情对象
        goods_info:{},
            // 左侧按钮组的配置对象
            options: [{
              icon: 'shop',
              text: '店铺'
            }, {
              icon: 'cart',
              text: '购物车',
              info: 0
            }],
            // 右侧按钮组的配置对象
            buttonGroup: [{
                text: '加入购物车',
                backgroundColor: '#ff0000',
                color: '#fff'
              },
              {
                text: '立即购买',
                backgroundColor: '#ffa200',
                color: '#fff'
              }
            ]
      };
    },
    onLoad(options) {
      //获取商品ID
      const goods_id = options.goods_id
      //调用请求商品详情数据的方法
      this.getGoodsDetail(goods_id)
    },
    methods:{
      async getGoodsDetail(goods_id){
        const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status !== 200) return uni.$showMsg()
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g, 'jpg')
        
        this.goods_info = res.message
      },
      //实现轮播图的预览效果
      preview(i){
        //预览图片方法
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      //右侧按钮点击事件
      onClick(e){
        if(e.content.text === '购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      // 右侧按钮的点击事件
      buttonClick(e){
        if(e.content.text === '加入购物车'){
          const goods = {
               goods_id: this.goods_info.goods_id,       // 商品的Id
               goods_name: this.goods_info.goods_name,   // 商品的名称
               goods_price: this.goods_info.goods_price, // 商品的价格
               goods_count: 1,                           // 商品的数量
               goods_small_logo: this.goods_info.goods_small_logo, // 商品的图片
               goods_state: true                         // 商品的勾选状态
          }
          this.addToCart(goods)
        }
      },
      ...mapMutations('m_cart',['addToCart']),
    },
    computed:{
      ...mapState('m_cart',['cart']),
      ...mapGetters('m_cart',['total'])
    },
    watch:{
      total:{
        handler(newVal){
          const findResult = this.options.find(x=>x.text==='购物车')
          if(findResult){
            findResult.info = newVal
          }
        },
        immediate:true
      },
    
    }
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    width: 100%;
    height: 100%;
  }
}
.goods-info-box{
  padding: 10px;
  padding-right: 0;
  .price{
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }
  .goods-info-body{
    display: flex;
    justify-content: space-between;
    .goods-name{
      font-size: 13px;
      padding-right: 10px;
      
    }
    .favi{
      width: 120px;
      font-size: 12px;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-left: 1px solid #efefef;
      color:  gray;
    }
  }
  .yf{
    margin: 10px 0;
    font-size: 12px;
    color: gray;
  }
}
.goods-detail-container{
  padding-bottom: 50px;
}
.uni-goods-nav{
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}
</style>
